5540406540 has 48 divisors (see below), whose sum is σ = 15725659488. Its totient is φ = 1457201664.

The previous prime is 5540406533. The next prime is 5540406541. The reversal of 5540406540 is 456040455.

It is a super-2 number, since 2×5540406540² = 61392209256949543200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5540406541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 628087 + ... + 636846.

It is an arithmetic number, because the mean of its divisors is an integer number (327617906).

Almost surely, 2^5540406540 is an apocalyptic number.

It is an amenable number.

5540406540 is an abundant number, since it is smaller than the sum of its proper divisors (10185252948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5540406540 is a wasteful number, since it uses less digits than its factorization.

5540406540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265018 (or 1265016 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

The square root of 5540406540 is about 74433.9071928916. The cubic root of 5540406540 is about 1769.4863267301.

Adding to 5540406540 its reverse (456040455), we get a palindrome (5996446995).

The spelling of 5540406540 in words is "five billion, five hundred forty million, four hundred six thousand, five hundred forty".